[PATCH 5/8] arm64: tegra: Clean up AHUB on Tegra194

From: Thierry Reding

Date: Wed Sep 02 2026 - 06:26:16 EST

From: Thierry Reding <treding@xxxxxxxxxx>

Use #address-cells = <1> and #size-cells = <1> because we don't need
64-bit register addressing for this hardware. While at it, also adjust
the ranges property to encompass the entire AHUB range as per the TRM.

Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 74 ++++++++++++++++----------------
1 file changed, 37 insertions(+), 37 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 2b5001d2c3ab..13a95008c186 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -231,14 +231,14 @@ tegra_ahub: ahub@2900800 {
assigned-clock-rates = <81600000>;
status = "disabled";

- #address-cells = <2>;
- #size-cells = <2>;
- ranges = <0x0 0x02900800 0x0 0x02900800 0x0 0x11800>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x02900000 0x0 0x02900000 0x20000>;

tegra_i2s1: i2s@2901000 {
compatible = "nvidia,tegra194-i2s",
"nvidia,tegra210-i2s";
- reg = <0x0 0x2901000 0x0 0x100>;
+ reg = <0x2901000 0x100>;
clocks = <&bpmp TEGRA194_CLK_I2S1>,
<&bpmp TEGRA194_CLK_I2S1_SYNC_INPUT>;
clock-names = "i2s", "sync_input";
@@ -252,7 +252,7 @@ tegra_i2s1: i2s@2901000 {
tegra_i2s2: i2s@2901100 {
compatible = "nvidia,tegra194-i2s",
"nvidia,tegra210-i2s";
- reg = <0x0 0x2901100 0x0 0x100>;
+ reg = <0x2901100 0x100>;
clocks = <&bpmp TEGRA194_CLK_I2S2>,
<&bpmp TEGRA194_CLK_I2S2_SYNC_INPUT>;
clock-names = "i2s", "sync_input";
@@ -266,7 +266,7 @@ tegra_i2s2: i2s@2901100 {
tegra_i2s3: i2s@2901200 {
compatible = "nvidia,tegra194-i2s",
"nvidia,tegra210-i2s";
- reg = <0x0 0x2901200 0x0 0x100>;
+ reg = <0x2901200 0x100>;
clocks = <&bpmp TEGRA194_CLK_I2S3>,
<&bpmp TEGRA194_CLK_I2S3_SYNC_INPUT>;
clock-names = "i2s", "sync_input";
@@ -280,7 +280,7 @@ tegra_i2s3: i2s@2901200 {
tegra_i2s4: i2s@2901300 {
compatible = "nvidia,tegra194-i2s",
"nvidia,tegra210-i2s";
- reg = <0x0 0x2901300 0x0 0x100>;
+ reg = <0x2901300 0x100>;
clocks = <&bpmp TEGRA194_CLK_I2S4>,
<&bpmp TEGRA194_CLK_I2S4_SYNC_INPUT>;
clock-names = "i2s", "sync_input";
@@ -294,7 +294,7 @@ tegra_i2s4: i2s@2901300 {
tegra_i2s5: i2s@2901400 {
compatible = "nvidia,tegra194-i2s",
"nvidia,tegra210-i2s";
- reg = <0x0 0x2901400 0x0 0x100>;
+ reg = <0x2901400 0x100>;
clocks = <&bpmp TEGRA194_CLK_I2S5>,
<&bpmp TEGRA194_CLK_I2S5_SYNC_INPUT>;
clock-names = "i2s", "sync_input";
@@ -308,7 +308,7 @@ tegra_i2s5: i2s@2901400 {
tegra_i2s6: i2s@2901500 {
compatible = "nvidia,tegra194-i2s",
"nvidia,tegra210-i2s";
- reg = <0x0 0x2901500 0x0 0x100>;
+ reg = <0x2901500 0x100>;
clocks = <&bpmp TEGRA194_CLK_I2S6>,
<&bpmp TEGRA194_CLK_I2S6_SYNC_INPUT>;
clock-names = "i2s", "sync_input";
@@ -322,7 +322,7 @@ tegra_i2s6: i2s@2901500 {
tegra_sfc1: sfc@2902000 {
compatible = "nvidia,tegra194-sfc",
"nvidia,tegra210-sfc";
- reg = <0x0 0x2902000 0x0 0x200>;
+ reg = <0x2902000 0x200>;
sound-name-prefix = "SFC1";
status = "disabled";
};
@@ -330,7 +330,7 @@ tegra_sfc1: sfc@2902000 {
tegra_sfc2: sfc@2902200 {
compatible = "nvidia,tegra194-sfc",
"nvidia,tegra210-sfc";
- reg = <0x0 0x2902200 0x0 0x200>;
+ reg = <0x2902200 0x200>;
sound-name-prefix = "SFC2";
status = "disabled";
};
@@ -338,7 +338,7 @@ tegra_sfc2: sfc@2902200 {
tegra_sfc3: sfc@2902400 {
compatible = "nvidia,tegra194-sfc",
"nvidia,tegra210-sfc";
- reg = <0x0 0x2902400 0x0 0x200>;
+ reg = <0x2902400 0x200>;
sound-name-prefix = "SFC3";
status = "disabled";
};
@@ -346,35 +346,35 @@ tegra_sfc3: sfc@2902400 {
tegra_sfc4: sfc@2902600 {
compatible = "nvidia,tegra194-sfc",
"nvidia,tegra210-sfc";
- reg = <0x0 0x2902600 0x0 0x200>;
+ reg = <0x2902600 0x200>;
sound-name-prefix = "SFC4";
status = "disabled";
};

tegra_amx1: amx@2903000 {
compatible = "nvidia,tegra194-amx";
- reg = <0x0 0x2903000 0x0 0x100>;
+ reg = <0x2903000 0x100>;
sound-name-prefix = "AMX1";
status = "disabled";
};

tegra_amx2: amx@2903100 {
compatible = "nvidia,tegra194-amx";
- reg = <0x0 0x2903100 0x0 0x100>;
+ reg = <0x2903100 0x100>;
sound-name-prefix = "AMX2";
status = "disabled";
};

tegra_amx3: amx@2903200 {
compatible = "nvidia,tegra194-amx";
- reg = <0x0 0x2903200 0x0 0x100>;
+ reg = <0x2903200 0x100>;
sound-name-prefix = "AMX3";
status = "disabled";
};

tegra_amx4: amx@2903300 {
compatible = "nvidia,tegra194-amx";
- reg = <0x0 0x2903300 0x0 0x100>;
+ reg = <0x2903300 0x100>;
sound-name-prefix = "AMX4";
status = "disabled";
};
@@ -382,7 +382,7 @@ tegra_amx4: amx@2903300 {
tegra_adx1: adx@2903800 {
compatible = "nvidia,tegra194-adx",
"nvidia,tegra210-adx";
- reg = <0x0 0x2903800 0x0 0x100>;
+ reg = <0x2903800 0x100>;
sound-name-prefix = "ADX1";
status = "disabled";
};
@@ -390,7 +390,7 @@ tegra_adx1: adx@2903800 {
tegra_adx2: adx@2903900 {
compatible = "nvidia,tegra194-adx",
"nvidia,tegra210-adx";
- reg = <0x0 0x2903900 0x0 0x100>;
+ reg = <0x2903900 0x100>;
sound-name-prefix = "ADX2";
status = "disabled";
};
@@ -398,7 +398,7 @@ tegra_adx2: adx@2903900 {
tegra_adx3: adx@2903a00 {
compatible = "nvidia,tegra194-adx",
"nvidia,tegra210-adx";
- reg = <0x0 0x2903a00 0x0 0x100>;
+ reg = <0x2903a00 0x100>;
sound-name-prefix = "ADX3";
status = "disabled";
};
@@ -406,7 +406,7 @@ tegra_adx3: adx@2903a00 {
tegra_adx4: adx@2903b00 {
compatible = "nvidia,tegra194-adx",
"nvidia,tegra210-adx";
- reg = <0x0 0x2903b00 0x0 0x100>;
+ reg = <0x2903b00 0x100>;
sound-name-prefix = "ADX4";
status = "disabled";
};
@@ -414,7 +414,7 @@ tegra_adx4: adx@2903b00 {
tegra_dmic1: dmic@2904000 {
compatible = "nvidia,tegra194-dmic",
"nvidia,tegra210-dmic";
- reg = <0x0 0x2904000 0x0 0x100>;
+ reg = <0x2904000 0x100>;
clocks = <&bpmp TEGRA194_CLK_DMIC1>;
clock-names = "dmic";
assigned-clocks = <&bpmp TEGRA194_CLK_DMIC1>;
@@ -427,7 +427,7 @@ tegra_dmic1: dmic@2904000 {
tegra_dmic2: dmic@2904100 {
compatible = "nvidia,tegra194-dmic",
"nvidia,tegra210-dmic";
- reg = <0x0 0x2904100 0x0 0x100>;
+ reg = <0x2904100 0x100>;
clocks = <&bpmp TEGRA194_CLK_DMIC2>;
clock-names = "dmic";
assigned-clocks = <&bpmp TEGRA194_CLK_DMIC2>;
@@ -440,7 +440,7 @@ tegra_dmic2: dmic@2904100 {
tegra_dmic3: dmic@2904200 {
compatible = "nvidia,tegra194-dmic",
"nvidia,tegra210-dmic";
- reg = <0x0 0x2904200 0x0 0x100>;
+ reg = <0x2904200 0x100>;
clocks = <&bpmp TEGRA194_CLK_DMIC3>;
clock-names = "dmic";
assigned-clocks = <&bpmp TEGRA194_CLK_DMIC3>;
@@ -453,7 +453,7 @@ tegra_dmic3: dmic@2904200 {
tegra_dmic4: dmic@2904300 {
compatible = "nvidia,tegra194-dmic",
"nvidia,tegra210-dmic";
- reg = <0x0 0x2904300 0x0 0x100>;
+ reg = <0x2904300 0x100>;
clocks = <&bpmp TEGRA194_CLK_DMIC4>;
clock-names = "dmic";
assigned-clocks = <&bpmp TEGRA194_CLK_DMIC4>;
@@ -466,7 +466,7 @@ tegra_dmic4: dmic@2904300 {
tegra_dspk1: dspk@2905000 {
compatible = "nvidia,tegra194-dspk",
"nvidia,tegra186-dspk";
- reg = <0x0 0x2905000 0x0 0x100>;
+ reg = <0x2905000 0x100>;
clocks = <&bpmp TEGRA194_CLK_DSPK1>;
clock-names = "dspk";
assigned-clocks = <&bpmp TEGRA194_CLK_DSPK1>;
@@ -479,7 +479,7 @@ tegra_dspk1: dspk@2905000 {
tegra_dspk2: dspk@2905100 {
compatible = "nvidia,tegra194-dspk",
"nvidia,tegra186-dspk";
- reg = <0x0 0x2905100 0x0 0x100>;
+ reg = <0x2905100 0x100>;
clocks = <&bpmp TEGRA194_CLK_DSPK2>;
clock-names = "dspk";
assigned-clocks = <&bpmp TEGRA194_CLK_DSPK2>;
@@ -492,31 +492,31 @@ tegra_dspk2: dspk@2905100 {
tegra_ope1: processing-engine@2908000 {
compatible = "nvidia,tegra194-ope",
"nvidia,tegra210-ope";
- reg = <0x0 0x2908000 0x0 0x100>;
+ reg = <0x2908000 0x100>;
sound-name-prefix = "OPE1";
status = "disabled";

- #address-cells = <2>;
- #size-cells = <2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
ranges;

equalizer@2908100 {
compatible = "nvidia,tegra194-peq",
"nvidia,tegra210-peq";
- reg = <0x0 0x2908100 0x0 0x100>;
+ reg = <0x2908100 0x100>;
};

dynamic-range-compressor@2908200 {
compatible = "nvidia,tegra194-mbdrc",
"nvidia,tegra210-mbdrc";
- reg = <0x0 0x2908200 0x0 0x200>;
+ reg = <0x2908200 0x200>;
};
};

tegra_mvc1: mvc@290a000 {
compatible = "nvidia,tegra194-mvc",
"nvidia,tegra210-mvc";
- reg = <0x0 0x290a000 0x0 0x200>;
+ reg = <0x290a000 0x200>;
sound-name-prefix = "MVC1";
status = "disabled";
};
@@ -524,7 +524,7 @@ tegra_mvc1: mvc@290a000 {
tegra_mvc2: mvc@290a200 {
compatible = "nvidia,tegra194-mvc",
"nvidia,tegra210-mvc";
- reg = <0x0 0x290a200 0x0 0x200>;
+ reg = <0x290a200 0x200>;
sound-name-prefix = "MVC2";
status = "disabled";
};
@@ -532,7 +532,7 @@ tegra_mvc2: mvc@290a200 {
tegra_amixer: amixer@290bb00 {
compatible = "nvidia,tegra194-amixer",
"nvidia,tegra210-amixer";
- reg = <0x0 0x290bb00 0x0 0x800>;
+ reg = <0x290bb00 0x800>;
sound-name-prefix = "MIXER1";
status = "disabled";
};
@@ -540,7 +540,7 @@ tegra_amixer: amixer@290bb00 {
tegra_admaif: admaif@290f000 {
compatible = "nvidia,tegra194-admaif",
"nvidia,tegra186-admaif";
- reg = <0x0 0x0290f000 0x0 0x1000>;
+ reg = <0x0290f000 0x1000>;
dmas = <&adma 1>, <&adma 1>,
<&adma 2>, <&adma 2>,
<&adma 3>, <&adma 3>,
@@ -591,7 +591,7 @@ tegra_admaif: admaif@290f000 {
tegra_asrc: asrc@2910000 {
compatible = "nvidia,tegra194-asrc",
"nvidia,tegra186-asrc";
- reg = <0x0 0x2910000 0x0 0x2000>;
+ reg = <0x2910000 0x2000>;
sound-name-prefix = "ASRC1";
status = "disabled";
};

--
2.55.0